The Gryffindor Girls' Dormitory is located inside the Gryffindor Tower in the opposite side of the Gryffindor Boys' Dormitory. This is where the female Gryffindor students go to sleep at night. Each student gets their own bed, and space for storing personal belongings. As the founders considered boys to be less trustworthy they put a spell (possibly Glisseo) on the stairwell to prevent boys from entering that caused the stairs to turn into a slide.